The Doghouse: Net1
They have technology:
The FTS Patent has been acclaimed by leading cryptographic authorities around the world as the most innovative and secure protocol ever invented to manage offline and online smart card related transactions. Please see the independent report by Bruce Schneider [sic] in his book entitled Applied Cryptography, 2nd Edition published in the late 1990s.
I have no idea what this is referring to.
EDITED TO ADD (5/20): Someone, probably from the company, said in comments that this is referring to the UEPS protocol, discussed on page 589. I still don’t like the hyperbole and the implied endorsement in the quote.